Actually, i found heavy metal detoxing to be quite helpful. There's growing evidence that heavy metal toxicity can be a culprit in addictions, not just for alcohol.
I did the hypoglycemic diet for a while, but it didn't cure my alcoholism. Concurrent with the alcoholism is a candida problem, so i definitely understand the rationale for a restricted diet. I found that i could keep up the special diet for a while, but there'd always be moments where the alcohol/sugar cravings would return, so the diet alone was not enough, even when taking some of the supplements you mention in your online texts. For me, the concept of 'willpower' is just a figment of the imagination.
I've been sober 9 months, and the intensive three months (november - january) of HM detoxing definitely helped. From what i've been reading about metals, the candidiasis is caused by heavy metal toxicty. Trying to check the candida growth through selective carbohydrate intake but without addressing the underlying metal problem is a mistake.